Coke conveying and screening mechanism.



I T. J. MITGHELL. COKE CONVEYING AND SCREENING MECHANISM.

APPLICATION FILED APR.27, 1912,

1,082,???1. PatemeiDea3Q1913f .4 SHEETS-SHEET 1 A Attorneys T. J;MIElOHELL.

(JOKE CONVEYING AND SCREENING MECHANISM. APPLICATION FILED APR.27, 1912.

$1 0 2 57 I Patented Dec. 30, 191 3.

4 SHEER-SHEET 2.

. 6 Attorneys T. J. MITCHELL.

COKE CONVEYING AND SCREENING MECHANISM.

APPLICATION FILED Arlmv; 1912.

1,082,757. ,Pai e nted Dec.30,1913.

4 sums-533m s'.

Attorneya T. J. MITCHELL. 00KB CONVEYING AND SCREENING. MECHANISM.APPLIOATION FILED A PR.27, 1912.

4 SHEETS-SHEET 4. 4

Witns Patented Dec. 30, 1913.

cons oonvnvrne Linn sonnnnirie mncnanisn.

To all whom it may concern Be it known that I, THOMAS J. Mir, a citizenof the United States, residing at Uniontown, in the county of Fayetteand State of Pennsylvania, have invented a nev. and useful CokeConveying and Screening Mechanism, of which the following is aspecification. This invention relates to mechanisms for is receivingcoke as it is forced from an oven and delivering the same to a. car.

The primary object of the invention is to provide a mechanism of thischaracter which receives the coke as the same is forced from the ovenand delivers the same to the car,

and at the same time screens the coke, re-

. vide a conveyor which will screen the cok without breakage. I

A still further object'of the invention is to provide a coketransferring mechanism which while efi'ectually removing the braize and,ash-from the same will lay the coke in the car, the drop of the cokewhich is usual in screening conveyers being avoided. A still furtherobject of the invention is to provide means which will receive the coketogether with the braize and ash and convey the same to the point wherethe coke is delivered and then convey the braize and ash to a pointbeneath the wheeled support of the conveying mechanism. A further objectof the invention is to provide means for adjusting the delivery end ofthe conveyor with respect to the car which receives the coke.

In the drawings :Figure 1 is a top plan view of the complete apparatus.Fig. 2 is a side elevation of the complete apparatus, the same beingshown as receiving coke from an oven of the rectangular-type anddepositing the same within a car. Fig. 3 is a section on the line 2-2 ofFig. 2 looking in the direction of the arrow. Fig. 4 is a detail view ofthe conveyer. Fig. 5 is a perspective view of a portion of the conveyorbelt, and Fig. 6 is an end elevation of a portion of said belt.

In the drawings, 10 designates the wheeled supportfor the conveyingmechanism, said support being formed with the uprights 11 and- 12 whichare connected by the. transverse beams 14. Supported by the upper endsoi the beams 11 and 12 is a platform 15 sup- Specification of EettersPatent.

' Application filed Apr-1127, 1912. Seriatfelo. 693,664.

Patented Dec. 30, 1913.

porting a motor 16 which drives the gear 17' mounted on the lay shaft18. This shaft through the pinion 19 which engages the beveled gear 20drives the vertically disposed shaft 21, the gear 20 being mounted onthe end portion of said shaft. The end portion of the shaft 21 adjacentsaid pinion is supported by the braclret 22 which is secured at thepoint at to the platform 15, said,

bracket also supporting the lay shaft 18. The end of the shaft 2].remote from the gear wheel is supported by brackets 25, a pinion 26arranged on said shaft meshing with the beveled gear 27 which drives theaxle 28, the wheeled support being propelled in this manner.

Disposed transversely of the wheeled support and arranged intermediatethe two sets of vertical standards 11 and 12 is the conveyer 30. Thisconveyer is supported (reference being hadto Fig. 3 of the drawings) bythe vertically moving bearing block 31. This bearing block or eam issecured at either end to a tubular interiorly screwthreaded boxing 32.These boxings are disposed for' vertical movement within the verticalhousing 33, arranged parallel with the beams 11 and 12. Supported withinthe housing 33 and journaled to rotate therein are feed screws 34 whichextend through the block 32. These feed screws extend beyond at eitherendwith pinions 37, the shaft being driven by the gear 38 which mesheswith the gear 39, driven by the motor 40.

It will be noted that as the feed screws 35 are rotated, verticalmovement will be imparted to the bar 31 through the medium of the boxing32, the support for the conveyer in this manner being raised andlowered. The conveyor is pivotally supported at its lower end, by"trunnions carried by the beams 67, the same swinging on its pivotas thebeam 31 is raised and lowered by the feed screws 34:. Thus it will benoted that 'the upper end of the housings 33 and 31". 4

the conveyor may be adjusted with respect to the colre receiving car 43,the drop of the coke thus being accurately re dated as --raised as thecar is filled.

The conveyer belt, the construction of which will be hereinaftermorefully described, is driven by sprockets mounted on the shaft 44. Thisshaft is provided with the gear 45 which is driven by the shaft 46, apinion 47 arranged on said shaft meshing with thege'ar 45. The shaft 46participates" in the movement of the conveyer and is supported for suchmovement by a bracket 48 which is secured to the conveye'r. This shaftis driven by a gear 49 in mesh with a pinion dis osed on-its end-remotefrom the pinion 4 The pinion49 is driven by the gear 51 which, in turn,is driven by the gear 52 of the motor which is so constructed that themovement of the conveyer on the pivot will not-afi'ect the drivingmechanism for the conveyer. v

- The conveyer is composed of a series of curved plates 54 whicharecarried by two endless chains 63. These chains pass along either sideof the'machine and around the sprockets at the. receiving and deliveryends,

the chains being driven by said sprockets. These endless, chains 'carrlugs 53 to'which the curved slats are attac ed. The forward edge of eachslat is curved upward and opening for material to fall inside the beltas the slats pass over the. sprockets at the ends; Where the slats 54are wide, .if it is found necessary, an additional slat 57 is" rivetedto the mer in proper position so as to stiffen the slat and addadditional capacity for carrying ashes andibraize. The curved end of oneof the plates abuts an ad: jacent plate and, secured to each plate andspaced at a point equidistant from its, curved end and the curved endofthe adjacent plate-,- is a second transversely disposed plate 57 whichas stated above, is for the purpose of stiffening the slats, the coke intransitrest ,ing upon the edges of the plate, thebraize and ashfallingwithinthe'pocket's and be? tween' the plates. As before stated,the slats 54'are securedat either end to links of an endless chain 63,formin a complete a d continuous belt." The en ess chain '63 as rollers60 ta faveli'ng, inthe guides formed by the beams 61-,th1s constructionproviding a support for the eonveyer belt;

Extending from the wheeled support in the direction of the ovenare-beams- 67-, the

-end portions-0f which are supportedby the obli uely disposed beams 68which are se cure to the uprights 11. A plurality of depending brackets69' are securedto' the beams 67adjacent their ends, Pivotally supportedby saidbrackets is 'a guard or deflector 70, these (guards being adaptedto register with the si e walls of the oven, the guards being providedwithmotches 71 which receive the projecting ledge 72 which forms acontinua-- lion of the oven floor. raised and lowered by means of rods76'- which terminate in rack'bars 76, the rack bars 76 being advanced orretarded by the gear 77 which is rotated by the gear 78, this movementbeing imparted to the gear 78 by means of the crank 7 9". It will benoted by this construction that as the rack bar 76 is advanced orretarded the guards will be moved toward or from the oven.

In practice the coke is projected upon the conveyor as the same isfo-rced'from theoven, the oven as before stated, being of therectangular type in which a plunger is inserted from one end and thecharge forced from the other. The coke falls upon the con-.

veyer in large pieces, and as before stated these pieces rest upon theedges of the plates" 54 and 57, the skin being broken, and the braizeand ash being deposited within the pockets formed by curving the plates.Thus the braize and coke are conveyed independently, the coke restingupon the plate and the -braize being housed by the pockets formed bycurving the plates. The coke is conveyed to the delivery end of theconveyer and deposited within the car, the braize and ash being retainedby the curved plates even as the same pass over the sprockets disposedadjacent the delivery'end of the COH- veyer. The pockets then descendwithin a trough 79, the-terminal 80 of which is curved upward to receivethe braize and ash which *may fallfrom the pockets. The braize or ash isthen conveyed through the trough 7 9, being conducted by the curved endsof'the plates. This trough adjacent the delivery I end 42 of the conveer lies parallel wit said delivery end w ich is slightly ofiset from thebod of the conveyer. At the point 82the trougis inclined. and descendsto a sup ort, the braize or ash then being de- POSli/Qd throughanopening in said support. It will be noted by'this constructionthat thebraize and ash effectually removed from the coke without undulyelevating the same the only elevation necessar to the conveyer being theelevation of t e delivery end, which elevation is necessary" astheheight ofthe coke in the receiving car increases, the delivery-endof theconveyer being re- These guards are r point adjacent the center of theconveyor which is disposed at-the center of the wheeled tained at apoint with respect to the car so as to lay the coke in large chunks inthe car avqiding'breakage. Thus the coke is efiectually screened and atthe same time delivered to the car without breakage.-

same forming braizereceiving pockets, the

The invention consists in providing means Particular attention is calledto the pe- 'culiar construction of the conveyer belt, the

i for conveying and screening the coke without unnecessary elevation ofthe same such as is done where the coke is elevated and dropped over ascreen to separate the ash and braize before assing to the railroad carfor transportation which latter method is objectionable on account ofboth the additional elevation necessary and also the drop over a screenwhich causes breakage of the coke in falling 'over the screen onto thecar. Attention is also called to the peculiar manner in which theconveyer issupported and means for vertically adjusting the delivery endof the same. It will also be noted that the peculiar formation of thejeonveyer belt and the angle at which-the curved end .portions of theplates 54 and.

57 are'disposed, form pockets for the braize or ash, these pockets beingso disposed that as before stated the conveyer in rounding -the sprocketat its delivery end, does not ermitthe braize or'ash to fall. It willseen that the pockets will scrape the material along the spout or chute79, preventin the chute from becoming clogged.

at is claimed is:

1. A mechanism for conveying and screening coke including a conveyingmember which receives the coke andash from the oven, said' coke and ashbeing carried for the entire length of the conveyer andmeansforreturning the ash to a point adjacent the receiving end of the conveyer.

' 2. Coke conveying and separating mecha nism including an endlessconveyer comprising flexibly connected members having outstandingportions the free edges of which constitute coke supporting and carryingmeans, said members forming ash receiving pockets below the supportedcoke and which are shaped to retain the ashes after conveyin the coke tothe point of. delivery.

3. oke conveying and separating mochanism including an endless conveyercomprisingflexibly connected members having outstandingportions the freeedges ofwvhich constitute coke supporting and 'carrying means, saidmembers forming ash receiving pockets below the supported coke and whichare shaped to retain the ashes after conveying the coke to the point ofdelivery, and

means ion-receiving the ashes when delivcred from' the pockets.

' 4. Cokeiconveying and separating mechanism including an endlessconveyer comprising flexibly connected members having outstandingpockets, those pockets of the active flight of the conveyer beingsubstan tially. inverted, the free edges of the said inverted pocketsconstituting coke support ing and carrying members, the spaces betweensaid inverted pockets adapted to receive ashes fromvthe coke thereabove,said' .pockets being movable. from inverted to active positionsv duringthe discharge ofthe coke thereabove, thereby to retain the ashdischarged between the pockets.

e conveying and separating mech-.-

anism including an endless conveyer comprising flexibly connectedmembers having outstanding pocket-s,.those pockets of the active flightof the conveyer being substantially inverted, the free edges of thesaid, inverted pockets constituting coke supporttally, deflecting meansdisposed under said horizontally extended portion, each of the membersof the conveyer having outstanding pockets, the pockets of the upperflight be1ng .substantially inverted and havln their free edges adaptedto support and carry coke,'the spaces between these inverted pocketsbeing adapted to receiveashes from the coke supported thereabove, saidpockets being movable from inverted to active positions while passinfrom the upper to the lower flights, there y to retain the ashes untilbroughtto position above the deflecting means.

7. A combinedcoke conveyer and sepa-' rator, includingan endlessconveyer made up of flexibly connected members forming upper and lowerflights, the said members having pockets extending throughout the widththereof, the pockets of the members constituting the upper flight beingsubstantially inverted and having their upper edges constituting meansfor supporting coke above and outside of the pockets, the spaces betweensaid inverted pockets being adapted to receive ashes from the cokethereabove, said pockets being movable from inverted to active positionswhile passing from the upper to the lower flights, thereby to retain theashes during the discharge of the coke from the uppermost portion of theconveyer.

8. A combined coke conveyer and separator including an endless conveyermade up of flexibly connected members forming upper and lower flights,the said members having pockets extending throughout the width thereof,the pockets of the members con-' stituting the upper flight beingsubstantially inverted and having their upper edges constituting means Ifor support ng coke above and outside of the pockets, the spaces quentto the discharge of the cohe e515 1( between said inverted pockets beingadaptabove the pockets containing the same. v

' ed to receive ashes from the coke thereabove, In testimony that Iclaim the foregoing said pockets being movable from inverted as my own,I have hereto aifixed my signato active 'ositions while passing from theture in the presence of two witnesses.

upper to t e lowerfiights, thereby to retain THOMAS J-.

' the ashes dnring the discharge of the. coke Witnesses:

from the up permost portion of the conveyer, J. G. LASIIORN,

' and a trough for receiving the ashes subse- KATHERINE 'PHILLIPPI.

